The average sperm cell swims at 8 inches per hour.
76
The average person's skin weighs twice as much as their brain.
131
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
If your DNA was stretched out it would reach to the moon 6,000 times.
256
Your thumb is about the same size as your nose.
124
One human hair can support 3 ounces.
191
The human body contains over a billion miles of DNA.
147